make: "var-op-expand.mk" line 259: Unknown modifier "s,value,replaced,"
make: "var-op-expand.mk" line 262: warning: XXX Neither branch should be taken.
make: "var-op-expand.mk" line 267: Unknown modifier "s,value,replaced,"
make: "var-op-expand.mk" line 268: warning: XXX Neither branch should be taken.
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1